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Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Histone Modification

Histone Modification

The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...

Inheritance of Chromatin Structures

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Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying DNA...

Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Epigenetic Regulation

Epigenetic Regulation

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...

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Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...

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Related Experiment Video

Updated: May 7, 2026

Methylated DNA Immunoprecipitation

Methylated DNA Immunoprecipitation

Published on: January 2, 2009

Perceptions of epigenetics.

¹Wellcome Trust Centre for Cell Biology, Edinburgh University, The King's Buildings, Edinburgh EH9 3JR, UK.

|May 25, 2007

Summary

Epigenetics explores how gene function is altered without changing DNA sequence. This exciting field offers new insights into biology beyond genetic determinism.

Area of Science:

Biology
Genetics
Epigenetics

Background:

The study of genes is well-established, but the concept of 'epigenes' remains elusive.
Epigenetics has gained significant attention, with over 2,500 articles and dedicated scientific meetings in the past year.
It is presented as a revolutionary science, challenging the notion of genetic determinism.

Purpose of the Study:

To define and explain the emerging field of epigenetics.
To clarify the scope and significance of epigenetic research in contemporary biology.

Main Methods:

This abstract does not detail specific methods.
The field relies on various molecular biology techniques to study gene regulation.

Main Results:

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An Integrated Platform for Genome-wide Mapping of Chromatin States Using High-throughput ChIP-sequencing in Tumor Tissues

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Last Updated: May 7, 2026

Methylated DNA Immunoprecipitation

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Published on: January 2, 2009

Pattern-based Search of Epigenomic Data Using GeNemo

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Published on: October 8, 2017

An Integrated Platform for Genome-wide Mapping of Chromatin States Using High-throughput ChIP-sequencing in Tumor Tissues

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Published on: April 5, 2018

The abstract highlights the rapid growth and popular interest in epigenetics.
It emphasizes epigenetics as a dynamic field offering alternatives to purely genetic explanations.

Conclusions:

Epigenetics represents a significant and rapidly evolving area of biological study.
It provides a framework for understanding biological complexity beyond the DNA sequence.